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A new inter-system double-difference RTK model applicable to both overlapping and non-overlapping signal frequencies
Springer Science and Business Media LLC - Tập 4 - Trang 1-10 - 2023
Wenhao Zhao, Genyou Liu, Ming Gao, Bo Zhang, Shengjun Hu, Minghui Lyu
Aiming at the problem that the traditional inter-system double-difference model is not suitable for non-overlapping signal frequencies, we propose a new inter-system double-difference model with single difference ambiguity estimation, which can be applied for both overlapping and non-overlapping signal frequencies. The single difference ambiguities of all satellites and Differential Inter-System B...... hiện toàn bộ
A review of real-time multi-GNSS precise orbit determination based on the filter method
Springer Science and Business Media LLC - Tập 3 Số 1 - 2022
Yidong Lou, Xiaolei Dai, Xiaopeng Gong, Chenglong Li, Yun Qing, Yang Liu, Yunfeng Peng, Shengfeng Gu
AbstractStable and reliable high-precision satellite orbit products are the prerequisites for the positioning services with high performance. In general, the positioning accuracy depends strongly on the quality of satellite orbit and clock products, especially for absolute positioning modes, such as Precise Point Positioning (PPP). With the development of real-time...... hiện toàn bộ
Estimation of BDS pseudorange biases with high temporal resolution: feasibility, affecting factors, and necessity
Springer Science and Business Media LLC - - 2023
Ke Su, Guoqiang Jiao
AbstractA common practice adopted for the pseudorange bias estimation and calibration assumes that Global Navigation Satellite System satellite-dependent pseudorange biases vary gently over time. Whereupon satellite pseudorange biases are routinely estimated and provided as the products with low temporal resolution, e.g., hourly or daily, by the agencies. The story...... hiện toàn bộ
Status, perspectives and trends of satellite navigation
Springer Science and Business Media LLC - Tập 1 - Trang 1-12 - 2020
Guenter W. Hein
This paper reviews the status of satellite navigation (as per 11 May 2020)—without claim for completeness—and discusses the various global navigation satellite systems, regional satellite navigation systems and satellite-based augmentation systems. Problems and challenges for delivering nowadays a safe and reliable navigation are discussed. New opportunities, perspectives and megatrends of satelli...... hiện toàn bộ
Principle and performance of BDSBAS and PPP-B2b of BDS-3
Springer Science and Business Media LLC - Tập 3 - Trang 1-9 - 2022
Yuanxi Yang, Qun Ding, Weiguang Gao, Jinlong Li, Yangyin Xu, Bijiao Sun
Within the framework of differential augmentation, this paper introduces the basic technical framework and performance of the BeiDou Global Navigation Satellite System (BDS-3) Satellite-Based Augmentation System (BDSBAS), including orbit products, satellite clock offset products, ionosphere and its integrity performance. The basic principle of BDS-3 Precise Point Positioning (PPP-B2b) is expounded...... hiện toàn bộ
A double sideband combined tracking method for Galileo E5 AltBOC signals
Springer Science and Business Media LLC - Tập 4 Số 1 - Trang 1-13 - 2023
Fan, Tongwen, Zhang, Tisheng, Zhang, Hongping, Mo, Jun, Niu, Xiaoji
The Galileo navigation satellite system (Galileo) E5 Alternative Binary Offset Carrier (AltBOC) signal brings various challenges due to its complex modulation, wide bandwidth, and multi-peaked auto-correlation function. While wideband tracking needs to solve the ambiguity problem and design dedicated baseband channels, the single-sideband cannot have the outstanding performance of the AltBOC signa...... hiện toàn bộ
Principle and performance of multi-frequency and multi-GNSS PPP-RTK
Springer Science and Business Media LLC - Tập 3 - Trang 1-11 - 2022
Xingxing Li, Bo Wang, Xin Li, Jiaxin Huang, Hongbo Lyu, Xinjuan Han
PPP-RTK which takes full advantages of both Real-Time Kinematic (RTK) and Precise Point Positioning (PPP), is able to provide centimeter-level positioning accuracy with rapid integer Ambiguity Resolution (AR). In recent years, with the development of BeiDou Navigation Satellite System (BDS) and Galileo navigation satellite system (Galileo) as well as the modernization of Global Positioning System ...... hiện toàn bộ
An efficient approach for anti-jamming in IRNSS receivers using improved PSO based parametric wavelet packet thresholding
Springer Science and Business Media LLC - Tập 3 - Trang 1-20 - 2022
Jacob Silva Lorraine Kambham, Madhu Ramarakula
The Indian Regional Navigation Satellite System provides accurate positioning service to the users within and around India, extending up to 1500 km. However, when a receiver encounters a Continuous Wave Interference, its positioning accuracy degrades, or sometimes it even fails to work. Wavelet Packet Transform (WPT) is the most widely used technique for anti-jamming in Global Navigation Satellite...... hiện toàn bộ
A state-domain robust autonomous integrity monitoring with an extrapolation method for single receiver positioning in the presence of slowly growing fault
Springer Science and Business Media LLC - - 2023
Zhangjun Yu, Qiuzhao Zhang, Shubi Zhang, Nanshan Zheng, Keqiang Liu
Single receiver positioning has been widely used as a standard and standalone positioning technique for about 25 years. To detect the slowly growing faults caused by satellite and receiver clocks in single receiver positioning, the Autonomous Integrity Monitoring with an Extrapolation method (AIME) was proposed based on the Kalman filter measurement domain. However, AIME was designed with the assu...... hiện toàn bộ
Assessment of tomographic window and sampling rate effects on GNSS water vapor tomography
Springer Science and Business Media LLC - Tập 4 - Trang 1-12 - 2023
Fei Yang, Yilin Sun, Xiaolin Meng, Jiming Guo, Xu Gong
The ground-based Global Navigation Satellite System (GNSS) water vapor tomography is increasingly important in GNSS meteorology. As the multi-GNSS and more ground-based GNSS sites can be incorporated into the regional water vapor tomographic model, determining the tomographic window and sampling rate is crucial for the modelling of the water vapor tomography. These two factors affect not only the ...... hiện toàn bộ
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